Subaru WRX STI S208
The Subaru WRX STI S208, released in 2017 as a 450-unit limited edition exclusive to Japan, was one of the last and finest expressions of the EJ207-powered STI philosophy. Built by STI's specialist workshop rather than on the main production line, the S208 combined hand-built engine performance with advanced chassis technology to create what many consider the ultimate evolution of the traditional turbo flat-four STI formula.
The S208's engine was the culmination of decades of EJ207 development. Each unit was hand-assembled by STI's dedicated technicians with balanced and blueprinted components — matched pistons, polished connecting rods, and individually selected bearings. The result was an engine that produced 329 horsepower, the highest ever for a road-going EJ207, with a power delivery characterized by exceptional smoothness and a willingness to rev that felt markedly different from the production engine.
The chassis featured Bilstein DampMatic II dampers — the second generation of STI's frequency-reactive damper technology that automatically adjusted damping force based on road surface inputs. Combined with flexible tower bars, draw stiffeners, and pillow ball mounts at key suspension points, the S208 offered a level of chassis precision that rivaled purpose-built track cars while maintaining surprising daily drivability.
The carbon fiber roof, a signature feature of STI's limited editions, reduced both weight and center of gravity height. Combined with a dry carbon rear wing and STI-specific aerodynamic elements, the S208's body produced meaningful downforce at high speeds while maintaining a clean, understated appearance that distinguished it from the more aggressive looks of some competitors.
Braking was handled by Brembo's finest: 6-piston monoblock calipers at the front and 4-piston units at the rear, gripping generously sized cross-drilled rotors. The braking system was matched to the S208's increased performance capabilities, providing consistent, fade-free stopping power even under sustained circuit use.
The DCCD (Driver Controlled Center Differential) system allowed the driver to adjust the center differential's locking force through a range of settings, from fully automatic to fully locked. This feature, derived directly from Subaru's WRC experience, allowed experienced drivers to tune the car's handling balance to suit specific conditions or driving styles.
The S208 represented a bittersweet moment for STI enthusiasts. As one of the final limited-edition STIs built around the venerable EJ207 engine — with Subaru transitioning to the new-generation FA20 and eventually the FA24 turbo flat-four — the S208 was understood from the outset as a send-off for an era. This recognition, combined with its strict production limitation, ensured strong demand and immediate collectibility.
Extremely limited availability with only 450 produced. Authenticate through STI's production records and the numbered plaque inside the car. Verify the hand-built engine tag matches the chassis documentation. The EJ207 in S208 specification is the most refined version of this engine, but the fundamental weaknesses (oil starvation risk, ringland fragility) still apply — an oil analysis and compression test are essential. Check the carbon fiber roof and wing for any damage or repair evidence. The DampMatic II dampers are expensive to service but must be in good condition for the car to drive as intended. Any modifications from stock dramatically reduce value. Complete documentation, including the original purchase lottery confirmation, build certificate, and full service history, is essential for maximum value.
Hand-built at STI's Gunma facility. Limited to 450 units, all allocated to the Japanese domestic market. The S208 was offered in two specifications: standard and NBR Challenge Package (with additional dry carbon components and Nurburgring-inspired detailing). Announced in late 2017, deliveries were completed by early 2018. The S208 was one of the last new-production vehicles to use the EJ207 engine in any form.